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Published in: Optical and Quantum Electronics 1/2024

01-01-2024

Supercontinuum generation in tapered planar rib waveguide based on GAP-Se hybrid chalcogenide

Authors: Mohammad Sheikhmolaee, Mohammad Reza Alizadeh, Saeed Olyaee, Mahmood Seifouri

Published in: Optical and Quantum Electronics | Issue 1/2024

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Abstract

This paper introduces a novel design of a tapered rib waveguide utilizing Hybrid Chalcogenide material. The waveguide is 4 mm in length and has a core of GAP-Se. GAP-Se is a combination of GeSe2, As2Se3, and PbSe. The upper and lower cladding are made of SiO2. The varying height of the rib layer results in a reduced effective mode area and an increased nonlinear coefficient. To achieve a desirable and intended supercontinuum spectrum in this waveguide, we utilize a pump pulse with a pulse duration of 100 fs and a power of 1 kW at a wavelength of 3.1 µm. We can change the waveguide dimensions to control and engineer the dispersion properties, which give us two zero dispersion wavelengths at 2.81 µm and 4.91 µm. As a result, we get a supercontinuum spectrum from 2.2 to 5 µm with a bandwidth of 2.8 µm. This design can be useful for different purposes such as biomedical, sensors, and optical coherence tomography.

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Metadata
Title
Supercontinuum generation in tapered planar rib waveguide based on GAP-Se hybrid chalcogenide
Authors
Mohammad Sheikhmolaee
Mohammad Reza Alizadeh
Saeed Olyaee
Mahmood Seifouri
Publication date
01-01-2024
Publisher
Springer US
Published in
Optical and Quantum Electronics / Issue 1/2024
Print ISSN: 0306-8919
Electronic ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-023-05666-z

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